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   [ÀÚ¹Ù] String Çü½Ä ¿À·ù ÀÔ´Ï´Ù

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_programming&no=2758 [º¹»ç]


public class Person {
  static String RRN;   //ÇлýID
  String name;        //ÇлýÀ̸§
  static String gen;

Person(){}

  Person(String RRN,String name, String gen){
  this.RRN = RRN;
  this.name =name;
  this.gen=determineGender(RRN.charAt(7));//<--ÀÌ ºÎºÐÀÌ ¹®Á¦

}
void printPersonInfo(){
  System.out.println("[ÁֹιøÈ£]:"+ RRN);
  System.out.println("[name]:"+ name);
  System.out.println("[¼ºº°]"+gen);
  System.out.println();


}
public static void main(String args[]){
   Person person1=new Person();
  person1.RRN="8888881110101";
  person1.name="choi";
  person1.gen=determineGender(RRN.charAt(7)); //<--À̺κÐÀÌ ¹®Á¦

person1.printPersonInfo();
Person person2= new Person("8888881110101","kim",gen);
person2.printPersonInfo();


  public static String determineGender(String s){
  
   char charAt7 = RRN.charAt(7);
   if (charAt7=='1' || charAt7 == '3'){
   s="³²";
   }else if (charAt7=='2' || charAt7 == '4'){
   s="³à";
   }
   return s;
   }
}


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ÀüºÎ´Ù char·Î ¹Ù²Ù¸é ¸ÔÈ÷±â´Â Çϴµ¥;;

  Hit : 5683     Date : 2010/11/10 03:24



    
$Zero Modifier and Type Method and Description
char charAt(int index)
Returns the char value at the specified index.

- ÀÚ¹Ù API ¹ßÃé -
ÀÚ¹Ù API¹®¼­¸¦ º¸½Ã¸é ¾Æ½Ã°ÚÁö¸¸ ..
À§¿Í°°ÀÌ charAt ÇÔ¼ö´Â ¸®ÅÏÇü(¹ÝȯÇü)ÀÌ charÀÔ´Ï´Ù.
char¸¦ StringÀ¸·Î ¹ÞÀ¸·Á°íÇÏ´Ï ´ç¿¬È÷ ¿¡·¯°¡ ³¯ ¼ö ¹Û¿¡¿ä . .
2010/11/10  
Çܺ¸Ä­²ÊÂîÂÞ ÇØ°á ÇÒ·Á¸é ¾î¶»°Ô ÇØ¾ß ÇÏÁÒ? ¹ÝȯÇüÀ» StringÀ¸·Î ÇØ¾ß Çϳª¿ä? 2010/11/10  
$Zero charAt ÇÔ¼ö´Â APIÇÔ¼öÀ̱⶧¹®¿¡ »ç¿ëÀÚ°¡ ¸®ÅÏÇüÀ» ¹Ù²Ü¼ö ÀÖ´Â ÇÔ¼ö°¡ ¾Æ´Õ´Ï´Ù .. ; ;
ÇØ°á¹æ¹ýÀº ÄÚµåÀÚü¸¦ char·Î ÇϵçÁö , ½ºÆ®¸µº¯¼ö¿¡ ´ã°ÜÀÖ´Â ¹®ÀÚ¿­ Á¤º¸¸¦ ´Ù¸¥ ¹æ¹ýÀ¸·Î ¾ò´Â°ÍÀÌ Àְڳ׿ä .
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¶Ç .. ¾ÖÃÊ¿¡ ±ÛÀÚ Çϳª¸¦ ´ã´Âµ¥ Stringº¯¼ö¸¦ »ç¿ëÇÏ´Â°Ç ¸Þ¸ð¸® ³¶ºñÀÔ´Ï´Ù. .
String s = "³²"
Àº ³²À̶ó´Â ±ÛÀÚ¸¦ ¸Þ¸ð¸®¿¡ ¿Ã¸®°í ³²À» ÂüÁ¶ÇÏ´Â s·¹ÆÛ·±½º¸¦ ¸Þ¸ð¸®¿¡ ¶Ç ¿Ã¸®±â¶§¹®¿¡ .. ¾µµ¥¾øÀÌ ¸Þ¸ð¸®¸¦ ³¶ºñÇÏ°Ô µÇ´Â°ÅÁÒ.
ÀÚ¹Ù´Â À¯´ÏÄÚµå ±â¹ÝÀ̹ǷΠcharÇü º¯¼ö¿¡ ÇѱÛÀÌµç ¹¹µç ´Ù ´ãÀ» ¼ö ÀÖ½À´Ï´Ù. (ÇѱÛÀÚ ÇÑÁ¤)

±»ÀÌ StringÀ¸·Î ÇØ°áÇϽðڴٸé .. wrapper Ŭ·¡½º¸¦ »ç¿ëÇÏ½Ã¸é µË´Ï´Ù.

Character s = new Character(RRN.charAt(7));
person1.gen=determineGender(s.toString());
Äڵ带 ÀÌ·¸°Ô ¹Ù²ãº¸¼¼¿ä .

Character Ŭ·¡½º´Â charÇü º¯¼ö¸¦ Ŭ·¡½ºÈ­½ÃŲ°ÍÀÔ´Ï´Ù.
ÇÔ¼ö¿¡¼­ Object¸¦ ÀÎÀÚ·Î ¹Þ´Â°æ¿ì ÀÚÁÖ»ç¿ëÇϴ Ŭ·¡½ºÀε¥. .
À§ÀÇ Äڵ忡¼± ÇØ°á¹æ¾ÈÀÌ µÉ ¼ö Àְڳ׿ä .
toString() ¸Þ¼Òµå´Â ÀÎÀÚ·Î ¹Þ¾Ò´ø charÇü º¯¼ö¸¦ StringÇüÀ¸·Î ¸®ÅϽÃÅ°´Â ÇÔ¼öÀÔ´Ï´Ù.


2010/11/10  
$Zero »ý¼ºÀÚ ºÎºÐµµ
Character s = new Character(RRN.charAt(7));
person1.gen=determineGender(s.toString());
·Î ¹Ù²ãÁÖ¼Å¾ß ÇÕ´Ï´Ù.
2010/11/10  
$Zero ±Ùµ¥ .. ÀÎÀÚ·Î Àü´ÞµÇ´Â ½ºÆ®¸µ º¯¼öÀÇ Àǹ̸¦ Àß ¸ð¸£°Ú³×¿ä . .;;
ÇÔ¼ö¾È¿¡¼± ¾îÂ÷ÇÇ ´Ù½Ã charAt·Î °ªÀ» ¾ò¾î³»°í °è½Åµ¥ . .ÀÇ¹Ì ¾ø´Â ÀÏ °°½À´Ï´Ù ..
2010/11/10  
Çܺ¸Ä­²ÊÂîÂÞ À§¿¡ Character s = new Character(RRN.charAt(7));

À¸.. ÀÌ°Ô Àß ÀÌÇØ°¡ ¾È°¡³×¿ä;
2010/11/10  
$Zero wrapper Ŭ·¡½º¸¦ ¹è¿ì°í ³ª¸é ÀÌÇØ°¡ °¡½Ç°Å¿¡¿ä ^^;
¾ð¾îÀÇ ±¸Á¶¸¦ ¾Ë°í , API¹®¼­¸¸ ì°Üº»´Ù¸é ÀÚ¹Ù¸¸Å­ ½¬¿î¾ð¾îµµ ¾øÀ¸´Ï±î¿ä . ¤¾¤¾

Àü I/O ÀÔÃâ·Â¿¡¼­ °´Ã¼¸¦ ÆÄÀÏ¿¡ ÀúÀåÇÏ°í Àоî¿À´Â°Í¿¡ °¨µ¿ÀÇ ´«¹°À» È긲..
(¹Ï°Å³ª ¸»°Å³ª.. )

ÀÌ°É C++·Î ±¸ÇöÇ϶ó¸é .. ¾îÈÞ . .²ûÂïÇÕ´Ï´Ù;;
2010/11/11  
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